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Master Bond EP21LSCL-1 Two Component, Room Temperature Curing Epoxy Resin

Category Polymer , Thermoset , Epoxy , Epoxy Encapsulant, Unreinforced
Manufacturer Master Bond Inc.
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Master Bond EP21LSCL-1 Two Component, Room Temperature Curing Epoxy Resin.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
Product Description: Master Bond Polymer System EP21LSCL-1 is a two component, low viscosity epoxy resin system featuring optical clarity as well as non-yellowing properties. This system can be used for high performance coating, bonding, sealing, encapsulation and casting. It is formulated to cure easily at room temperature or more quickly at elevated temperatures. Master Bond EP21LSCL-1 is 100% reactive and does not contain any solvents or volatiles. It bonds well to metals, glass, ceramics, wood and many plastics and has good chemical resistance to water, fuels, oils, acids and bases. EP21LSCL-1 has great electrical insulation properties. Also of great significance is EP21LSCL-1’s exceptionally long open time. This low exothermic epoxy is ideal for larger castings ranging upwards of 2-3 inches thick. Its service temperature range is from -60°F to +250°F. It has excellent clarity and light transmission and unlike most epoxy formulations, it has very good clarity retention. Product Advantages: Simple 100:60 mix ratio by weight. Low viscosity; easily applied for bonding, sealing, coating and encapsulating.Long working life. Excellent physical strength properties, and good chemical resistance. Adhesion to similar and dissimilar substrates. Non-yellowing characteristics.Electrical insulation properties.
Physical Properties Metric English Comments
Viscosity 600 - 1200 cP
600 - 1200 cP
Part B
1800 - 2500 cP
1800 - 2500 cP
Part A
Mechanical Properties Metric English Comments
Hardness, Shore D >= 75
>= 75
Tensile Strength at Break >= 62.1 MPa

@Temperature 23.9 °C
>= 9000 psi

@Temperature 75.0 °F
Tensile Modulus 2.41 - 2.76 GPa

@Temperature 23.9 °C
350 - 400 ksi

@Temperature 75.0 °F
Shear Strength >= 13.8 MPa
>= 2000 psi
Al/Al, Tensile lap
Thermal Properties Metric English Comments
CTE, linear 40.0 - 45.0 µm/m-°C
22.2 - 25.0 µin/in-°F
Maximum Service Temperature, Air 121 °C
250 °F
Minimum Service Temperature, Air 15.6 °C
60.0 °F
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+16 ohm-cm
1.00e+16 ohm-cm
Dielectric Constant 4.1
4.1
Dielectric Strength 17.3 kV/mm

@Thickness 3.17 mm
440 kV/in

@Thickness 0.125 in
Processing Properties Metric English Comments
Cure Time 180 min

@Temperature 93.3 °C
3.00 hour

@Temperature 200 °F
180 - 300 min

@Temperature 23.9 °C
3.00 - 5.00 hour

@Temperature 75.0 °F
Pot Life 9.0 - 11 min
9.0 - 11 min
100 gram mass
Shelf Life 12.0 Month

@Temperature 23.9 °C
12.0 Month

@Temperature 75.0 °F
at ambient temperatures in original closed containers
Descriptive Properties Value Comments
90% gloss retention 2000 hrs
Xenon Weather-O-Meter
400 hrs
QUV Cyclic Ultraviolet Weathering Tester
Mixing Ratio (A to B) 100:60
by weight
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